diff --git a/phpBB/language/en/install.php b/phpBB/language/en/install.php
index a745445fdd..0d37cf5bb4 100644
--- a/phpBB/language/en/install.php
+++ b/phpBB/language/en/install.php
@@ -184,9 +184,9 @@ $lang = array_merge($lang, array(
 	'TABLE_PREFIX_EXPLAIN'	=> 'The prefix must start with a letter and must only contain letters, numbers and underscores.',
 
 	// Database options
-	'DB_OPTION_MSSQL_ODBC'	=> 'MSSQL Server 2000+ via ODBC',
-	'DB_OPTION_MSSQLNATIVE'	=> 'MSSQL Server 2005+ [ Native ]',
-	'DB_OPTION_MYSQLI'		=> 'MySQL with MySQLi Extension',
+	'DB_OPTION_MSSQL_ODBC'	=> 'MSSQL Server via ODBC',
+	'DB_OPTION_MSSQLNATIVE'	=> 'MSSQL Server [ Native ]',
+	'DB_OPTION_MYSQLI'		=> 'MySQL',
 	'DB_OPTION_ORACLE'		=> 'Oracle',
 	'DB_OPTION_POSTGRES'	=> 'PostgreSQL',
 	'DB_OPTION_SQLITE3'		=> 'SQLite 3',
@@ -202,7 +202,8 @@ $lang = array_merge($lang, array(
 	'INST_ERR_DB_NO_WRITABLE'		=> 'Both the database and the directory containing it must be writable.',
 	'INST_ERR_DB_NO_ERROR'			=> 'No error message given.',
 	'INST_ERR_PREFIX'				=> 'Tables with the specified prefix already exist, please choose an alternative.',
-	'INST_ERR_DB_NO_MYSQLI'			=> 'The version of MySQL installed on this machine is incompatible with the “MySQL with MySQLi Extension” option you have selected. Please try the “MySQL” option instead.',
+	'INST_ERR_DB_NO_MYSQLI'			=> 'The version of MySQL installed on this machine is too old, it must be upgraded to at least 5.6.',
+	'INST_ERR_DB_NO_MSSQL'			=> 'The version of Microsoft SQL Server installed on this machine is too old, it must be upgraded to at least SQL Server 2012 (11.0.2100.60)',
 	'INST_ERR_DB_NO_SQLITE3'		=> 'The version of the SQLite extension you have installed is too old, it must be upgraded to at least 3.8.3.',
 	'INST_ERR_DB_NO_ORACLE'			=> 'The version of Oracle installed is too old, it must be upgraded to at least 12.1.0.2.',
 	'INST_ERR_DB_NO_POSTGRES'		=> 'The version of the PostgreSQL you have installed is too old, it must be upgraded to at least 9.4.',
diff --git a/phpBB/phpbb/install/helper/database.php b/phpBB/phpbb/install/helper/database.php
index bf7b479626..7f911ec999 100644
--- a/phpBB/phpbb/install/helper/database.php
+++ b/phpBB/phpbb/install/helper/database.php
@@ -39,7 +39,7 @@ class database
 		// Note: php 5.5 alpha 2 deprecated mysql.
 		// Keep mysqli before mysql in this list.
 		'mysqli'	=> array(
-			'LABEL'			=> 'MySQL with MySQLi Extension',
+			'LABEL'			=> 'MySQL',
 			'SCHEMA'		=> 'mysql_41',
 			'MODULE'		=> 'mysqli',
 			'DOCTRINE'		=> ['pdo_mysql'],
@@ -59,7 +59,7 @@ class database
 			'2.0.x'			=> true,
 		),
 		'mssqlnative'	=> array(
-			'LABEL'			=> 'MS SQL Server 2005+ [ Native ]',
+			'LABEL'			=> 'MS SQL Server [ Native ]',
 			'SCHEMA'		=> 'mssql',
 			'MODULE'		=> 'sqlsrv',
 			'DOCTRINE'		=> ['pdo_sqlsrv'],
@@ -78,7 +78,7 @@ class database
 			'2.0.x'			=> false,
 		),
 		'postgres' => array(
-			'LABEL'			=> 'PostgreSQL 8.3+',
+			'LABEL'			=> 'PostgreSQL',
 			'SCHEMA'		=> 'postgres',
 			'MODULE'		=> 'pgsql',
 			'DOCTRINE'		=> ['pdo_pgsql'],
@@ -405,10 +405,19 @@ class database
 			}
 
 			// Check if database version is supported
+			$db_server_version = $doctrine_db->getWrappedConnection()->getServerVersion();
 			switch ($dbms)
 			{
+				case 'mysqli':
+					if (version_compare($db_server_version, '5.6', '<'))
+					{
+						$errors[] = array(
+							'title' => 'INST_ERR_DB_NO_MYSQLI',
+						);
+					}
+				break;
 				case 'sqlite3':
-					if (version_compare($db->sql_server_info(true), '3.8.3', '<'))
+					if (version_compare($db_server_version, '3.8.3', '<'))
 					{
 						$errors[] = array(
 							'title' => 'INST_ERR_DB_NO_SQLITE3',
@@ -416,20 +425,7 @@ class database
 					}
 				break;
 				case 'oracle':
-					$sql = "SELECT *
-						FROM NLS_DATABASE_PARAMETERS
-						WHERE PARAMETER = 'NLS_RDBMS_VERSION'
-							OR PARAMETER = 'NLS_CHARACTERSET'";
-					$result = $db->sql_query($sql);
-
-					$stats = [];
-					while ($row = $db->sql_fetchrow($result))
-					{
-						$stats[$row['parameter']] = $row['value'];
-					}
-					$db->sql_freeresult($result);
-
-					if (version_compare($stats['NLS_RDBMS_VERSION'], '9.2', '<') && $stats['NLS_CHARACTERSET'] !== 'UTF8')
+					if (version_compare($db_server_version, '12.1.0.2', '<'))
 					{
 						$errors[] = array(
 							'title' => 'INST_ERR_DB_NO_ORACLE',
@@ -437,17 +433,35 @@ class database
 					}
 				break;
 				case 'postgres':
-					$sql = "SHOW server_encoding;";
-					$result = $db->sql_query($sql);
-					$row = $db->sql_fetchrow($result);
-					$db->sql_freeresult($result);
-
-					if ($row['server_encoding'] !== 'UNICODE' && $row['server_encoding'] !== 'UTF8')
+					if (version_compare($db_server_version, '9.4', '<'))
 					{
 						$errors[] = array(
 							'title' => 'INST_ERR_DB_NO_POSTGRES',
 						);
 					}
+					else
+					{
+						$sql = "SHOW server_encoding;";
+						$result = $db->sql_query($sql);
+						$row = $db->sql_fetchrow($result);
+						$db->sql_freeresult($result);
+
+						if ($row['server_encoding'] !== 'UNICODE' && $row['server_encoding'] !== 'UTF8')
+						{
+							$errors[] = array(
+								'title' => 'INST_ERR_DB_NO_POSTGRES_UTF8',
+							);
+						}
+					}
+				break;
+				case 'mssqlnative':
+				case 'mssql_odbc':
+					if (version_compare($db_server_version, '11.0.2100.60', '<'))
+					{
+						$errors[] = array(
+							'title' => 'INST_ERR_DB_NO_MSSQL',
+						);
+					}
 				break;
 			}
 		}